Question

The bisectors of angle A and angle B meer at point P. If angle C =100° and angle D=50°, Find the angle APB
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Answer 1

100+50+2x+2y =360

2x+2y = 210

x+y = 105

In triangle APB

x+y+angle APB = 180

105+ ANGLE APB =180

ANGLE APB = 75